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Aeronautics Nationaladvisorycommittee AERONAUTICS NINTH ANNUAL REPORT OF THE NATIONALADVISORYCOMMITTEE FOR AERONAUTICS 1923 INCLUDING TECHNICAL REPORTS hTos. 159 TO 185 WASH.IXGTOX GOVERNMENTPRINTINGOFFICE 1924 Particular attention is invited to the four por- tions of this report summarized below: The report on the fundamental principles of the Air MaiI Service submitted to the late President Harding at his request—Development of night flying and the establishment of regular trans- continental mail service is urgeci. (See page 11.) The statement of the need of Eederal legislation for the regulation and licensing of aircraft, air- dromes, and aviators, and for the encourage- ment of the development of commercial avia- tion generally. (See page 14.) The explanation of the reIation of aeronautical research to nationaI defense—No limitation on the use of aircraft in warfare-lmmy and Navy defense programs influenced by the rapid development of the art of aviation-Aviation progress dependent upon scientific research— In this respect at Ieast America is pro~iding well against unpreparedness. (See page 54.) The conclusion of the report, summarizing Amer- ican achievements of pojxdar interest during the past year—What is holding back corrm~er- cial aviation-ATecessity of greater appropria- tions to maintain adequate air services in Army and Navy. (See page 55.) — LETTER (M? SUBMITTAL. To mix CONGRESSOF TEE UNITED STATES; ln compliance with the prm-isions of the act of Mkreh 3, 1915, establishing the Natiord Advisory Committee for Aeronautics, 1 submit herewith the ninth mmuaI report of the com- mittee, for the fiscal year ended June 30, 1923. The attention of & Congress is invited to Lhe conclusion of the committee’s report, -which cont~ins constructive recommendations for the advancement of aeronautics, civil and military. I wish especially to indorse the recommendation of the Natio~d Advisory Committee for Aeronautics for the establishment of a Bureau of Civi Aeronautics in the Department of Com- merce. 1 concur in the committee’s views as to the necessity of scientific research and the importance of proticibg for continued development of military and mL~al aviation if America is to keep abreast of other nations. CALT-LXCOOmGE. THE WBITE HOUSE, December 10, 1923= 111 LETTER OF TRANSMITTAL. NATIONAL ADVISORY COMMITTEEFOR AERON-AUTICS? Tdtington, D. C., .iYarember 231 i&?3. J&r. PRESIDENT: In compliance with the protiions of the act of Congress approved March 3, 1915 {Public ATO.273, 63d Cong.), 1 have the honor LO transmit here-with the ninth mnuaI report of the National Advisory Committee for Aeronautics, incIuding a statement of expenditures for the fiscal year ended June 30, 1923. During the past year there has been remarkable progress in aeron~ut ical demloprnent. .4 speed of 4+ miles per minute has been attained and ne~ records made for airplane endurance md economy of operation. The ak maiI sertice, by flyirg through the night on schedule, has demonstrated that, as soon as authorized, a reawhw transcontinental mail service within 36 . hours can be given the American people. The cumukti~e evidence of aeronautical progress since the wrnistke would} if fulIy appreciated} stir the imagination of far-seeing people} espe- cially .imerican business men, for air navigation as an improved means of transportation is destined to become as re-rolutionary and as indispensable as the automobile. The airplane, however, is also becoming a more =iitd implement of -mar. Ayiation will be the first branch of either the Army or the A’avy to come into action in the future, and supremacy in the air will be practicality essential for uItimate success. With this in mind: zmd recoa@zing the need for retrenchment in governmental expenditures generalIy, it is the jud=gment of the National Ad-risory Committee for Aeronautics thzt it is unwise economy to withhold from the air services of the Army and the L’a-ry the funcls necessary for their de-re~opment and for their adequate equipment and maintenance. RespectfuMy submitted. hTATIOXU AMISORY COMMITTEEFOR .4EROXAUTICS, CHARLES D. WALcOT~, Chairman. The PRESIDENT, The Wkde House, Tashingion, D. C. .,. ---.——-.—- c(_)N’lwN’ls. Letter of subtittiti ------------------------------------------------------------------------------------- Letter of tmmtittal------------------------------------------------------------------------------------ Ntith-ual reprt ------------------------------------------------------------------------------------ Fmctions of thecotittee ----------------------------------------------------------------------------- Organization oftieeodttee -------------------------------------------------------------------------- 31@@sof theqtkcotittee.. ..---- .---- .---- .------- .----- .------------- . ------------------------ ~e=wutive cotittee -------------------------------------------------------------------------------- -—. Subc&ttees ----------------------------------------------------------------------------------------- Qtiersfor cotittee ---------------------------------------------------------------------------------- The Lmgley Nemo&I Aeronautical Labomto~----------------------------------------------------------- Oticeof AerowuticaI In@lHgence ------------------------------------------------------------------------ Ctidemtian ofaerwutical ti~entiom ------------------------------------------------------------------ Useofnon-go~ernmental agencies.. ------------------------------------------------------------------- (~mpemtion oftiymd Na~y -------------------------------------------------------------------------- Investi~tiom undertaken forthehmy mdthe Na~---------------------------------------------------- SpeciaI Committee on Desigmof Naq R~ldfistip ZR-l ------------------------------------------------- Special Cdtteeon Des~nof&my Se*d&fip RS-l -------------------------------------------- American aerorrautical safety code-. --------------------------------------------------------------------- Intermtimi s@ndw~zation of*dtunelrwtiti. ------------------------------------------------------ Fundamentd purposes of the Air Uail Sertice ------------------------------------------------------------ Theneed of Federal legislation--- . ---------------------------------------------------------------------- Canada’s continued cmmtesytoAmericanairpi lots. ------------------------------------------------------- Intentional &r Con~------------------------------------------------------------------------------- Repofiof Cdtteeon Aertiy-cs -------------------------------------------------------------------- Fteport o[Committee on Power Plants for&rcmft. -.---- ..------------L ------------------------------------ Reptiof Cotittee on Materials for&croft ------------------------------------------------------------ Tectical pubbcations of thectittee ----------------------------------------------------------------- Bibfi~phy of aeronautics ------------------------------------------------------------------------------ Ftiancial repti ----------------------------------------------------------------------------------------- Eetimawtioml &wt --------------------------------------------------------------------------------- Rek+tion hetween aeronautic research and ticmftd&gn -------------------------------------------------- Advantages of the Amwicans @.emforae ronauticalresemch. -------------------------------------------- Rektion ofaeronauticaI rwmchto mtiomIdefemw ------------------------------------------------------ Conclmion ---------------------------------------------------------------------------------------------- Ap~ndix . ----------------------------- . m TECHNICAL REPORTS. P&gc No. 159. “.Iet. J?ropukionfor Air-planes, ” bf- Edgar BLlckillgl]a~n... --.. __---- _-. _.. __-. ---_.. _---= z? No. 160. ‘(An Xlrship Slide R~lle,” ‘oy E.R. Weaver and S. F. Pickering ------------------------------- 91 NO. 161. ‘(The Distribution of Lift Over WingTipsarrd Ailerons,’: by David L. Bacon --------------- 103 NO. 162. “CornpleteStudyof Longitudinal Oscillation ofa VE-7.4irpIa.ue, ”by F. H. Xortorr and 1}’. G. Brolvll.-_-______-_-p ____________ . ------------------------------ .-._-__-_.-_.-_.-------.:- 127 Xo. 163. “TheVertical, Longituriiual, and Lateral .Icceleratiorrs Experienced by rrn S. E, 5A .lirpIane l\~hiie LIane~~verii]g,’’ byF. H. NortonandT. Carroll ------------------------------------------ 133 $/0.164. “TJreInertiaC oeffieientso fan Airdlipi naFrictionles sFhlid, “byH. Bat@mall ------------- 139 J~O. 165. “Dial)llragmsf or. Lero~]a[Itie Instruments, ” by M. D. Hersey ----------------------------- 155 NO. 166. “TheAerodynzrmic Plane Table, ” by.+, F. Zah]n ---------------------- ._._=-__---.__._-- 1s7 L~O. 167. “TheMeasuremeut of theDa.mpingin Roll ona JN4hin Flight, ” by F. H. Norton- ..--== 199 Yo. 16S. “The General Efficiency Currc for Air PropeUers, ” by WaIterS. Diel~l --------------------- 205 No. 169. “The Etfectof AirfoiI Thickness and Plan Forrnon Lateral Control, ” by H. I. Hoot. -------- 217 No. 170. ‘[.l Studyof Longitudinal Dynamic Stabilifyi nl?light, ” by F.H. Norton ----------------- Z2Q No, 171. '' Engille Perforlllallce ancitlle Deterlni]lation of Al>sd{]te Ceding, ''by Walter S. DichI. .. ---- 239 No. 172. ``Dyllarnie Stal]ility as Mectedby tile Lo]~gitli(liI~al Momenfof Inertia,’) by Ertwin B. H’ilson- 251 ● No. 173. ``Reiiable Forml)lae for Estin)ating .lir~)la]]e Perforluar~cc andtl~e Effects of Cl~angcs i[~lYeigtlt, Wing Aera, or Power,” by WalterS. DiehI -------------------------------------- ---------------- 359 No.
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